2680749476145 has 40 divisors (see below), whose sum is σ = 5175144867816. Its totient is φ = 1319753585664.

The previous prime is 2680749476123. The next prime is 2680749476147. The reversal of 2680749476145 is 5416749470862.

2680749476145 is a `hidden beast` number, since 2 + 6 + 8 + 0 + 7 + 4 + 9 + 4 + 7 + 614 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 27929428641 + 2652820047504 = 167121^2 + 1628748^2 .

It is not a de Polignac number, because 2680749476145 - 2⁹ = 2680749475633 is a prime.

It is a super-2 number, since 2×2680749476145² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2680749476147) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 254576832 + ... + 254587361.

Almost surely, 2^{2680749476145} is an apocalyptic number.

It is an amenable number.

2680749476145 is a deficient number, since it is larger than the sum of its proper divisors (2494395391671).

2680749476145 is a wasteful number, since it uses less digits than its factorization.

2680749476145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509164223 (or 509164214 counting only the distinct ones).

The product of its (nonzero) digits is 81285120, while the sum is 63.

The spelling of 2680749476145 in words is "two trillion, six hundred eighty billion, seven hundred forty-nine million, four hundred seventy-six thousand, one hundred forty-five".